RT Journal Article SR Electronic T1 Occupational Lung Diseases JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 1068 OP 1068 DO 10.1136/thx.51.10.1068-b VO 51 IS 10 A1 RH YR 1996 UL http://thorax.bmj.com/content/51/10/1068.3.abstract AB